Yawning

It is not uncommon. Instead of a long answer I'll just refer you to:

http://www.dana.org/news/brainhealth/detail.aspx?id=9790

Yawning, particularly if you have some congestion due to cold or allergies, helps even out the pressure on both sides of the eardrum. This allows it to operate properly to transmit the sound waves correctly.

Most people yawn about 5 to 10 times per day on average. Yawning is a common involuntary reflex that helps regulate oxygen and carbon dioxide levels in the blood and can also be triggered by fatigue or boredom.

I did some research into this and it appears as though a deficiency in Magnesium can cause the type symptoms you are mentioning. I had the same type chest pains after yawning for a number of years. The pain and frequency increases dramatically whenever I would take in large stimulates like too much caffeine or weight lifting energy supplements. My doctors told me to stop taking the energy pills so I did. However, the problem still persisted. When I researched another issue I had I came across information that seemed to tie it all together. It appears much of the pain was due to magnesium deficiency. Within a week of taking magnesium, I felt the symptom starting to quickly go away! Since taking the magnesium, it has eliminated those chest pains altogether when I yawn! I had seen the doctor several times, had ex-rays for obstructions, stopped drinking caffeinated drinks (all good things) but it still persisted until I took the magnesium supplements.

The current record for the most yawns in a day is not officially documented as it is not a widely recognized category for record-keeping. The number of yawns a person can do in a day can vary depending on individual factors such as fatigue, boredom, and brain activity.

Yes , when you yawn you take a slow and deep breath that brings more oxygen to the brain. the oxygen gives your brain cells a little wake up call.

Yawning when you see someone else yawn is thought to be a form of social bonding or empathy. It may be an unconscious response triggered by seeing someone you are connected to engage in a behavior, leading to a contagious yawning effect.

Yes, it is sort of a pass on.

Lets say you yawn && there is a person beside you, eventually he/she would yawn because not of boredom... my teacher told me a month ago why but I forgot but pretty much it's contagious(:

you may have a severe cold or flue

get more/better sleep

to suppress a yawn, when you feel it coming, take a few deep breaths through your nose.

becaue when you see soeone yawn it makes ur brain think u need 2 yawn.

or

yawning is due to the fact you are breathing slower and not taking in enough oxygen

The longest yawn is held by David Rickert. Who on May 27, 1994 yawned for 6 minutes and 46 seconds strait

yes when you are tired and your body is trying to stay awake it yawns

I'm pretty sure it came from the sound of when one "yawns."

no it is actually good for you

no actually on myth buster we don't know why we do it we just do it doesn't change any thing if you do it or not

while sleepy CO2 accumulation increase and to get rid of it we yawn.

Well, it isn't good or bad. It is just something you're body does naturally when it's tired. You yawn because when you are tired, you don't have as much oxygen as you normally do.

You can't stop yawning because when you yawn your body is trying to get more oxygen into you body to try and stay awake. If you are yawning constantly your body is trying to keep you awake, the longer you stay awake, the more you will yawn.

Watch them very carefully, If you see their mouth stretch really wide and their gills opening, then they are yawning. Try letting them look at themselves through a mirror under water, they yawn a lot when they see themselves.

Yawning serves various purposes, such as regulating brain temperature or increasing alertness. It can also be triggered by boredom, stress, or just seeing someone else yawn. It doesn't always indicate tiredness.

People yawn when their brain isn't getting enough oxygen. If you not breathing properly and not getting enough air while singing, you will yawn. If this is an annoyance to you, practice proper breathing techniques for singers. You can find them anywhere online.

That's because you are not breathing very often. So, you are not getting very much air to your head. And when you do your brain wants you to take bigger breaths.

people tend to copy each other's body language so i one person does something their companion will often do it too, perhaps without knowing. This dates back to our stone age days, when we did everything in groups. The yawn would be a signal that it was time to start winding down and go to sleep. BY THE HOLLSTER

to give the brain fresh air!

if rude and yawning are defined as such i don't see any reason why the act of yawning be rude. yawning is physiologic. would urinating and defecating be rude also?